Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
In Allendale, the month of January is known for its lowest average temperatures, reaching a high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C).Humidity
The average relative humidity in January is 76%.Rainfall
In Allendale, in January, during 8.4 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 157.3 rainfall days, and 32.72" (831mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Allendale, in January, during 7.3 snowfall days, 2.8" (71mm) of snow is typically accumulated. In Allendale, during the entire year, snow falls for 28 days and aggregates up to 13.82" (351mm) of snow.Daylight
In Allendale, the average length of the day in January is 9h and 37min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:38 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:11 pm EST.
Sunshine
The average sunshine in January is 4.9h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in January translates into this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Allendale?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Allendale have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Allendale have in January?
What is the month with the lowest UV index?
What is the UV index reading in January in Allendale?
Average temperature in January
Allendale, NJ
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 22.8°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in January
Allendale, NJ
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Allendale, NJ
- Average wind speed in January: 7.9mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in January
Allendale, NJ
- Average humidity in January: 76%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall in January
Allendale, NJ
- Average rainfall in January: 2.28"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Allendale, NJ
- Average rainfall days in January: 8.4 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in January
Allendale, NJ
- Average snowfall in January: 2.8"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Allendale, NJ
- Average snowfall days in January: 7.3 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Allendale, NJ
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Allendale, NJ
- Average sunshine days in January: 17.6 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in January
Allendale, NJ
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Allendale, NJ
- Average cloud cover in January: 46
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Allendale, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Allendale, New Jersey, USA
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